Ultrasonic Dog Whistle circuit diagrams, schematics ... It's well known that many animals are particularly sensitive to high frequency sounds that humans can't hear. Many commercial pest repellers based on this principle are available, most of them operating in the range of 30 to 50 kHz. Ultrasonic Dog Whistle Circuit Exchange International (CXI) Despite the simplicity of the circuit, there is one little thing. The 10nF (.01) capacitor is critical as it, too, determines the frequency. Most ceramic caps are highly unstable and 20% tolerance is not unusual at all. ultrasonic circuit : Audio Circuits :: Next.gr Electrical pulses generated by the first base circuit pin output, and then sent through R6 piezoelectric speaker BLD, switched to the electric pulse ultrasonic waves to space r.. Electronic Attic Repeller shopfromyourhome How it works: This is a more advanced rodent repeller with a continually changing frequency! 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Attack Wave Mouse and Pest Repeller How it works: This is a more advanced rodent repeller with a continually changing frequency! The Attack Wave has an auto changing and auto sweeping high intensity frequency range above 30,000Hz to 65,000Hz. Mechanical Deer Deterrents Deer Departed Mechanical deer deterrents such as electronic deer controls, deer derrents, deer fencing, and mechanical deer deterrents all have their place in multi approach to deer control solutions. Miscellaneous electronic circuit diagrams circuit schematics Miscellaneous electronic circuit diagrams circuit schematics. Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy. Schematics | Free Online Schematic Drawing Tool Schematics is a free online schematic editor that allows you to create and share circuit diagrams. 50 555 Circuits Talking Electronics WHAT IS THE 555? The 555 is an 8 pin chip that can be turned into lots of different things (building blocks). The circuit inside the 555 is just an amplifier with 2 inputs and an output. Pestrol Rodent Free | Effective Electronic Rodent Control Pestrol Rodent Free combines electromagnetic, ultrasonic and ionic technologies for effective rodent control. Read about how our product helps with your rodent problem. Also effective against cockroaches. Document Search | Dialog Semiconductor Description File size ; iW1696 Datasheet: Linear and RCC Replacement; For Improved Performance – See iW1676, iW1677, iW1700 : 935.17 KB : DA7211 EVB Layout & BOM VOSS Electric Fence – Industry Experts Since 1981 VOSS electric fence – your electric fencing experts. Welcome to VOSS electric fence. We are the No 1 professional electric fence supplier in Europe and you will find everything you need for your electric fence requirements. 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